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4/15/2015 State.co.us Executive Branch Mail - Fwd: FW: Twentymile Coal -Wildlife Consultation for Planned Drilling Activities (MR15 -287 and County Administr... <br />"I ZZI! <br />From: Justin Pollock - DNR [mailto:justin, poll ock state. Co. us] <br />Sent: Wednesday, April 08, 2015 7:36 AM <br />To: Nettleton, Jerry <br />Subject: Re: Twentymile Coal - Wildlife Consultation for Planned Drilling Activities <br />Than you Jerry. I have review the information and agree the same conditions and considerations apply. Let me <br />know if I can be of further assistance. <br />Justin Pollock <br />District Wildlife Manager <br />Area 10- Steamboat Springs - Milner District <br />ADO: <br />P 970 - 629 -1247 <br />925 Weiss Dr. Steamboat Springs, CO 80477 <br />justin.pollock state.coous <br />On Apr 6, 2015, at 10:04 AM, "Nettleton, Jerry" <JNettletonpeabodyenergy , com> wrote: <br />Justin - <br />We are planning additional offset drilling and one additional corehole for our Wolf Creek Reserve to <br />delineate and assess the location and extent of sand channel deposits identified through previous <br />drilling (see attached Figure EX52 -F7). In order to accurately characterize these deposits, <br />Twentymile Coal (TC) has identified several parallel zones where offset drilling will be used to <br />locate channel intercepts. Because the thickness and characteristics of the drillhole intercepts will <br />determine the location and spacing of the offset drillholes, TC has defined the limits of the drilling <br />zones, the maximum number (8) and depth (1,800') of drillholes to be completed, and the <br />maximum total footage (2,500') of access road required. The new corehole and defined drilling <br />zones and related access fall generally outside of the identified "restricted use areas" for grouse <br />(shown on the attached map), although the drilling zones do encroach on two of the identified <br />grouse use areas on the eastern and western ends of these zones. TC proposes to either avoid <br />https: //m ai I .googl e.com /m ai I /u/0 / ?ui= 2 &i k= e29129fcb5 &view = pt &search= i nbox &th= l4cb8d791694bab3 &si m l= 14cb8d791694bab3 2/4 <br />